Analysis Overview
SHA256
a25d757e31be69503740505aa15e3535499d17669b104b91ab191b434f957abf
Threat Level: Known bad
The file 863aa7600167704c4c8f6f73118584e0_NEAS was found to be: Known bad.
Malicious Activity Summary
ModiLoader, DBatLoader
ModiLoader Second Stage
UPX packed file
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Adds Run key to start application
Suspicious use of SetThreadContext
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-07 12:45
Signatures
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-07 12:45
Reported
2024-05-07 12:48
Platform
win7-20240221-en
Max time kernel
149s
Max time network
124s
Command Line
Signatures
ModiLoader, DBatLoader
ModiLoader Second Stage
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe" | C:\Windows\SysWOW64\reg.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2892 set thread context of 1652 | N/A | C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe | C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe |
| PID 1664 set thread context of 1808 | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe |
| PID 1664 set thread context of 1236 | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe"
C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\PBKBT.bat" "
C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
Files
memory/2892-0-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2892-3-0x00000000002B0000-0x00000000002B1000-memory.dmp
memory/2892-5-0x00000000002B0000-0x00000000002B1000-memory.dmp
memory/2892-15-0x00000000002D0000-0x00000000002D1000-memory.dmp
memory/2892-27-0x00000000002F0000-0x00000000002F1000-memory.dmp
memory/2892-94-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2892-91-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1652-109-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1652-113-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1652-111-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2892-108-0x00000000005E0000-0x0000000000633000-memory.dmp
memory/2892-107-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2892-105-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1652-103-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1652-101-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/1652-99-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1652-97-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1652-95-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2892-84-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2892-83-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2892-82-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2892-80-0x00000000003D0000-0x00000000003D2000-memory.dmp
memory/2892-79-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2892-78-0x0000000000404000-0x0000000000405000-memory.dmp
memory/2892-67-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2892-70-0x00000000003B0000-0x00000000003B1000-memory.dmp
memory/2892-59-0x0000000000350000-0x0000000000351000-memory.dmp
memory/2892-39-0x0000000000310000-0x0000000000311000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\PBKBT.bat
| MD5 | 4eb61ec7816c34ec8c125acadc57ec1b |
| SHA1 | b0015cc865c0bb1a027be663027d3829401a31cc |
| SHA256 | 08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff |
| SHA512 | f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1 |
\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
| MD5 | 3b5aa559afa21267381b22eca32719dc |
| SHA1 | 199f077e6d1f2ccdb8663a99e15473f8cf3e3073 |
| SHA256 | 97339c3c9a1328acae1e412c4a602480a279de53b2be55603cf908aa953ae65c |
| SHA512 | a44d7fe1b4706a390e98e2aff6e248fa67d1484e313bcaedd5c2bf949079195d4ea28fa6affe657c37af0dc66316498a72b24607c0108706ed32ec9b065df79c |
memory/1652-140-0x0000000002D30000-0x0000000002D83000-memory.dmp
memory/1664-156-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1652-154-0x0000000002D40000-0x0000000002D93000-memory.dmp
memory/1652-153-0x0000000002D40000-0x0000000002D93000-memory.dmp
memory/1652-159-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1664-162-0x0000000000250000-0x0000000000251000-memory.dmp
memory/1664-228-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1664-183-0x00000000002D0000-0x00000000002D1000-memory.dmp
memory/1664-172-0x00000000002B0000-0x00000000002B1000-memory.dmp
memory/1652-263-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1664-257-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1236-255-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1808-254-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1808-268-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1236-269-0x0000000000400000-0x0000000000414000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-07 12:45
Reported
2024-05-07 12:48
Platform
win10v2004-20240419-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
ModiLoader, DBatLoader
ModiLoader Second Stage
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe" | C:\Windows\SysWOW64\reg.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1384 set thread context of 396 | N/A | C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe | C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe |
| PID 2508 set thread context of 3736 | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe |
| PID 2508 set thread context of 688 | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe"
C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\863aa7600167704c4c8f6f73118584e0_NEAS.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\FRVSG.bat" "
C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 4.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | 142.53.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | 48.251.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | 137.71.105.51.in-addr.arpa | udp |
Files
memory/1384-0-0x0000000000400000-0x0000000000453000-memory.dmp
memory/396-3-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1384-5-0x00000000021C0000-0x00000000021C2000-memory.dmp
memory/1384-8-0x00000000021E0000-0x00000000021E2000-memory.dmp
memory/1384-12-0x0000000000400000-0x0000000000453000-memory.dmp
memory/396-9-0x0000000000400000-0x000000000040B000-memory.dmp
memory/396-10-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1384-6-0x00000000021D0000-0x00000000021D2000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\FRVSG.txt
| MD5 | 4eb61ec7816c34ec8c125acadc57ec1b |
| SHA1 | b0015cc865c0bb1a027be663027d3829401a31cc |
| SHA256 | 08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff |
| SHA512 | f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1 |
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
| MD5 | f33ffd5009612a1d23099265cb9dab77 |
| SHA1 | 09783b6f41c4a64fec9f6d084e1854c063d5564e |
| SHA256 | a5eba13e348b4b038542a7ff9cc9f162541267db88bab6212b6de7ccf630dd62 |
| SHA512 | eb33b8bee119420495cb7b7978663dce8b65bebd69a22b5cb7d4b433412e76405186dc1e28fa44185cb8cc0957015a7d0cc9231fada0421d00952a2d44c48305 |
memory/2508-36-0x0000000000400000-0x0000000000453000-memory.dmp
memory/688-43-0x0000000000400000-0x0000000000414000-memory.dmp
memory/688-55-0x0000000000400000-0x0000000000414000-memory.dmp
memory/688-54-0x0000000000400000-0x0000000000414000-memory.dmp
memory/396-59-0x0000000000400000-0x000000000040B000-memory.dmp
memory/688-53-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3736-52-0x0000000000400000-0x000000000040B000-memory.dmp
memory/688-51-0x0000000000400000-0x0000000000414000-memory.dmp
memory/688-49-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2508-46-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3736-60-0x0000000000400000-0x000000000040B000-memory.dmp
memory/688-61-0x0000000000400000-0x0000000000414000-memory.dmp